Finding the Third Proportional to 298,108 and 443,107.50

Step by Step Solution

1. Step 1: Write the proportion equation
   298,108 : 443,107.50 = 443,107.50 : x
2. Step 2: Convert to fraction form
   298,108/443,107.50 = 443,107.50/x
3. Step 3: Cross multiply
   298,108x = 443,107.50 × 443,107.50
4. Step 4: Simplify right side
   298,108x = 196,344,256,556.25
5. Step 5: Solve for x
   x = 196,344,256,556.25/298,108
6. Step 6: Final answer
   x = 658,634.64